Answer:
22 breathes per minute
Explanation:
Respiratory rate:
It is the amount of breaths consumed per minute. The usual respiration rate for an adult that is not actively involved in any work is 12 to 20 breaths per minute. A respiration rate that is below 12 or above 25 breaths per minute while not actively involved in any work is considered abnormal.
MV = TV*(breaths/minute)
4.4 =2 * B/M
B/M=4.4/2
Therefore,
In our question, Respiratory rate is equivalent to 22 breathes per minute
The cell membrane is a selectively permeable membrane which controls what goes in and out to ensure that not just anything comes in through it's own accord.
Hello! :) I'm going to explain active transport (and also passive transport) in simple terms.
The concentration gradient is the movement of molecules from an area of high concentration to an area of low concentration of the molecule.
Passive transport happens when the molecules go down the concentration gradient, but what would happen if a cell needed to move molecules against the concentration gradient?
The process of moving molecule(s) against the concentration gradient is active transport. Active transport requires energy, however.
There are multiple types of active transport, such as endocytosis and exocytosis. Endocytosis moves molecules against the gradient into cells, while exocytosis move molecules outside the cell. There are two types of endocytosis: pinocytosis (liquids) and phagocytosis (solids.)
Hope this helps!
Meiosis continually reshuffles the genes resulting in a great variety of offspring. Without meiosis we would all look exactly alike. Meiosis allows each offspring to be different, and so potentially better, than the parent. If a disease comes along, there is a good chance that some of the population won't get sick or die because everyone's DNA isn't exactly alike.
Answer:
1.It mainly comes from foods rich in carbohydrates, like bread, potatoes, and fruit. As you eat, food travels down your esophagus to your stomach. There, acids and enzymes break it down into tiny pieces. During that process, glucose is released.